A 40-year-old man reported having recurrent episodes of fever and cough, without dyspnea.
His medical history was notable for acquired immunodeficiency syndrome (AIDS).
Chest radiography demonstrated a parenchymal consolidation in the right upper lobe of the lung, while unenhanced CT of the chest suggested pneumonia.
The patient underwent antibiotic therapy for 1 month, without significant clinical improvement.
After another month, unenhanced CT of the chest was repeated.